TY - JOUR A1 - Teng, Jun A1 - Tang, De-Hui A1 - Zhang, Xiao A1 - Hu, Wei-Hua A1 - Said, Samir A1 - Rohrmann, Rolf G. T1 - Automated modal analysis for tracking structural change during construction and operation phases N2 - The automated modal analysis (AMA) technique has attracted significant interest over the last few years, because it can track variations in modal parameters and has the potential to detect structural changes. In this paper, an improved density-based spatial clustering of applications with noise (DBSCAN) is introduced to clean the abnormal poles in a stabilization diagram. Moreover, the optimal system model order is also discussed to obtain more stable poles. A numerical Simulation and a full-scale experiment of an arch bridge are carried out to validate the effectiveness of the proposed algorithm. Subsequently, the continuous dynamic monitoring system of the bridge and the proposed algorithm are implemented to track the structural changes during the construction phase. Finally, the artificial neural network (ANN) is used to remove the temperature effect on modal frequencies so that a health index can be constructed under operational conditions. KW - Automated Modal Analysis for Tracking Structural Change during Construction and Operation Phases PY - 2019 UR - https://nbn-resolving.org/urn:nbn:de:kobv:b43-475116 UR - https://www.mdpi.com/1424-8220/19/4/927/pdf DO - https://doi.org/10.3390/s19040927 SN - 1424-8220 VL - 19 IS - 4 SP - 927, 1 EP - 23 PB - MDPI AG CY - Basel, Switzerland AN - OPUS4-47511 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rohrmann, Rolf T1 - Design and Operation of Integrated Monitoring Systems for Offshore Wind Turbines T2 - 9th German Wind Energy Conference, DEWEK 2008 CY - Bremen, Germany DA - 2008-11-26 PY - 2008 AN - OPUS4-18608 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rohrmann, Rolf T1 - Monitoring komplexer Anlagen am Beispiel von Offshore-Windenergieanlagen T2 - VDI/VDE Expertenforum 2011, Strukturmonitoring und Zustandsüberwachung CY - Nuremberg, Germany DA - 2011-06-07 PY - 2011 AN - OPUS4-23996 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rohrmann, Rolf T1 - Results from monitoring and assessment of offshore wind turbines T2 - Eurodyn 2011, 8th International Conference on Structural Dynamics CY - Leuven, Belgium DA - 2011-07-04 PY - 2011 AN - OPUS4-24082 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rohrmann, Rolf T1 - Integrale Systeme für die Strukturüberwachung, Dauerüberwachung der Anlagenteile "Bauwerk" und "Rotorblätter" T2 - AMA Fachverband für Sensorik: Fokussierte Thementage "Sensorik und Messtechnik für die Windenergie" CY - Mainz, Germany DA - 2011-12-01 PY - 2011 AN - OPUS4-25135 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rohrmann, Rolf T1 - Ergebnisse der Dauerüberwachung an einem Prototyp von Offshore-Windenergieanlagen T2 - 3. VDI-Fachtagung Baudynamik CY - Kassel, Germany DA - 2009-05-14 PY - 2009 AN - OPUS4-19773 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rohrmann, Rolf T1 - Monitoring Loads and Operational Demands at Wind Power Plants - Interaction between Tower and Rotor Blades T2 - 3rd Technical Conference WindTurbine Rotor Blades CY - Essen, Germany DA - 2011-06-28 PY - 2011 AN - OPUS4-24083 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Thöns, Sebastian A1 - Faber, M.H. A1 - Rücker, Werner A1 - Rohrmann, Rolf ED - Martorell, S. ED - et al., T1 - Assessment and monitoring of reliability and robustness of offshore wind energy converters T2 - ESREL 2008 CY - Valencia, Spain DA - 2008-09-22 KW - Structural reliability KW - Robustness KW - Monitoring KW - Risk KW - Wind energy converter PY - 2008 SN - 978-0-415-48513-5 SP - 1567 EP - 1572 PB - Taylor & Francis CY - London, UK AN - OPUS4-18565 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -